超干贮存对番茄种子活力的影响  

Effect of Ultra-dry Storage on Viability and Vigor of Tomato Seeds

作　　者：张海英[1] 孟淑春[1] 孔祥辉[1] 

机构地区：[1]北京市农林科学院蔬菜研究中心,北京100089

出　　处：《园艺学报》2002年第1期35-38,共4页Acta Horticulturae Sinica

基　　金：北京市自然科学基金资助项目 (6972 0 0 4) ;北京市科技新星计划资助项目 (95 4812 80 0 )

摘　　要：研究了超干含水量、贮存温度对番茄种子生活力和活力的影响 ,结果表明 :含水量为 4 .6 %、2 .4 %的番茄种子在 2 0℃下密封贮存 13年后 ,发芽率、苗长、脱氢酶活性、SOD活性与对照 (0℃、 6 .2 % )相比均无明显差异 ,但含水量为 1.9%的种子上述指标却显著下降 ,说明含水量为 4 .6 %、 2 .4 %的超干番茄种子在常温下具有良好的耐藏性 ,含水量过低 (1.9% )不利于长期贮存 ,但上述三种含水量 (4.6 %、2 .4 %、 1.9% )的番茄种子在 0℃下密封贮存 13年后 ,均有着较高的种子活力。The effects of different moisture content on viability and vigor of tomato seeds were studied.At the MC of 4.6% and 2.4%,there was no injury to tomato seed after 13 years storage at 20℃,it did not vary significantly either in seed viability or seed vigor,the activities of dehydrogenase and SOD also remained well,electric conductivity value indicated that the membrane system of this treatment had good integrity,while at 1.9% moisture content,all those indexes decreased significantly.Those ultra dried tomato seeds remained relatively high seed viability and vigor after 13 years storage at 0℃.The results indicated that we can store germplasm of tomato by using suitable ultra dry storage.

关 键 词：超干贮存 种子活力 番茄 种子生活力 种子贮存 

分 类 号：S641.2[农业科学—蔬菜学] S339.32[农业科学—园艺学]